*{
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
}
main{
    background: url(../img/banner4.jpg) fixed;
}
.banner{
    height: 600px;
    background: url(../img/banner.jpg);
    background-size: cover;
}
.banner2{
    background: url(../img/banner2.jpg);
    background-size: cover;
}
.banner3{
    background: url(../img/banner3.jpg);
    background-size: cover;
}

@media(max-width:1000px){
    .banner{
        height: 230px; 
    }
}
.card .card-text{
    height: 30px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
footer a{
    font-size: 14px;
}
